From Longman Dictionary of Contemporary Englishmolemole /məʊl $ moʊl/ ●○○ noun [countable]1HBAa small dark furry animal which is almost blind. Moles usually live under the ground.2MIMARKa small dark brownmark on the skin that is slightly higher than the skin around it3PGOSPYsomeone who works for an organization while secretly giving information to its enemies